[DevTools] Don't select anything when no items in FilteredItemSelectionDialog.

BUG=none

Review URL: https://codereview.chromium.org/366913005

git-svn-id: svn://svn.chromium.org/blink/trunk@177387 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Oilpan: fix build after r177376.

Move implementation of create() into .cpp to bring the MediaQueryEvaluator
type completely into scope.

TBR=haraken@chromium.org,oilpan-reviews@chromium.org
BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/366913007

git-svn-id: svn://svn.chromium.org/blink/trunk@177388 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Make ScriptWrappable's destructor empty in oilpan bulids

In Oilpan, we no longer need ScriptWrappable's destructor. This CL makes the destructor empty. I'll completely remove the destructor from oilpan builds in a follow-up CL.

See my comments in ScriptWrappable.h for why we can remove each line of the destructor.

BUG=340522

Review URL: https://codereview.chromium.org/362963005

git-svn-id: svn://svn.chromium.org/blink/trunk@177389 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Reduce code via using document.createElementWithClass and document.createChild.

R=vsevik, apavlov

Review URL: https://codereview.chromium.org/362273002

git-svn-id: svn://svn.chromium.org/blink/trunk@177390 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Delete now unused StyleDifferenceContextSensitiveProperty enum

After https://src.chromium.org/viewvc/blink?view=rev&revision=177358
these enumeration values are unused.

Review URL: https://codereview.chromium.org/366813004

git-svn-id: svn://svn.chromium.org/blink/trunk@177391 bbb929c8-8fbe-4397-9dbb-9b2b20218538